Apparatus for lining pipes.



J.' o. PERSONS. APPARATUS FOR LINING PIPES.

APPLICATION FILED Al'IG. 20, 1909.

urllfff .mmHlH J. 0. PERSONS.

APPARATUS FOR LINING PIPES. A-PPLI0ATIQN FILED AUG. zo. 1969.

Patented Feb. 6, 1912.

2 SHEETS-SHEET 2.

llulli @noel/doa James O PeYs ons -stress to the apparatus. `particularly adapted for drawing straight JAMES o. Pensons, or NoRroLK, VIRGINIA.

incierto.

Specification of Letters Batent.

v V.application led August 20, 1909. Serial No.. 513,870.

To all whom# may concern:

Be it known that `I, JAMES O. Pensons,

a citizen of the .United States, residing at Norfolk, inv the county of Norfolk and State of Virginia, have invented new'and useful improvements in Apparatus for Lining Pipes, of which the following is a specifical At one end there is attached to it a hook tion.

My invention relates particularly to apparatus for assembling the piece of pipe ,to be lined and lining material in proper relation to each other for the subsequent ope-ration by which the lining is expanded by a suitable process into intimate contact with the inside of the pipe.

More specifically stated, my invention consists in an improved device of this type comprising a flexible member attached .to the lining, preferably-at each end of the lining, and provided intermediate its ends'with a plurality of loosely mounted adjoining members adapted to fill the tube of such lining material. and to contact with the walls thereof in such manner as to prevent bending, buckling or kinking ofV the tube asit isv draw-n into the pipe by the application of My. apparatus is tubes of lining material into curved pipe, although it will be understood that it possesses many appreciable advantages for use with straight pipe. l

My apparatus possesses advantages of constructionin its details which combine admirably to produce the most efficient re'- sult. These detailed advantages 'ofconstruction, as well-as their coperation to produce an efficient apparatus as a whole, will' readily be apparent from the following' specification, andthe specific points of novl elty of my invention will befpointed out in the annexed claims.

In the drawings accompanying this specilicatignyFigure 1 is a' sectional view of my apparatu Fig. 2 is a sectional view f the same in connectionwith atube of lining material inserted within a section of curved Figs. Bland 4 are details of one of the 6 to 9 areviews of a still Afurther modification in which the lilling pieces composing the mandrel are omitted, in which Fig. 6 is a view`in section of lining material showing the cable applied, Fig. 7 .is-an' enlarged View of one end of thIs section of lining materiaL'thecable being `omitted,`Fig. 8 a similar view showing the cable attached, and Fig. 9 is an assembled view showing the application of the lining to the pipe by my i-mproved means.

Referring to Fig. 1 of the drawings, 10

Patented Feb. e, 1912..

is a flexible cable of any suitable material.

11 adapted to connect with, an eye 12 of an eye-bolt 13. 'This eye-bolt 13 is screwthreaded and is of sufficient length to accommodate two clamping members 14 and 15 for receiving the end of a tube of lining material. These clamping members 14 and 15 should be of such size as to properly clamp the end of the tube. the member 14 is provided with a cylindrical surface 16 of the same diameter as `the tube of lining-material (17 as shown) and a surface 18 at an angle lto the surface 16. The member l5 is provided with 'an in# ternal conical surface to coperate with the surface 18. A nut 19 provided with an eye threaded on the end of the eye-bolt 13 holds the parts together. The other en d ofM the flexible member 10 is attached to the end of a screw-threaded rod 20 which passes loosely through a U-shaped yoke 21 whose ends bear on the outer surface of a conical member 22, adapted to straddle the end of a tube o f lining material (as 17 The rod 20 is screw- Itwill be noted that..

threaded and provided with a handle 23 and a. wing nut'24 for its manipulation and adjustment. Intermediate the ends of the cable 1() are a number of members 25 wound to fit. The holes 27 are made divergent from a point intermediate the ends thereof Ioo to better accommodate the flexible cable, as

will hereinafter appear.

, In using my invention the procedure is `substantially as follows: The cable 10 is threaded through a section'ofl lining material by an suitable means,'andthereafter a number o `members 25 are threaded on cable,r the number depending uppn the length of the section of lining material, and

the clamp 26`lconiining them is fastened to the cable. The eye-bolt12gis `'next attached to the hook 1 1 and the member 14, co1*- `responding to the size 'of the particular lining tube 17, is placed over the eye-bolt, and .by means ofamallet or hammer the lend of the tubeA is then headed over the conical surface 18 and a member 15, of suitable size, is placed on top of it and clamped hard down by means of the nut 19 threading onto the eye-bolt 12; The conical member 22, carrying the yoke 21 and rod 20, is then placed over the opposite end of the tube and the end of the cable at that end of the tube attached to the end of the rod 20, as shown. `By properly manipulating the wing nut 24 bearing against the end ofthe yokeslack in the cable is taken up and the stress on the cable can be made anything de- `directly at the forward end and through the cable 10 and the rod and yoke 20 and 21, constituting tension devices to the opposite end. In Fig. 2 this drawing in operation is illustrated with the section of lining 17 applied to a' section of a curved pipe 31.

I The' lining is shown as fully drawn in, it

having been entered at the end 32 of the` pipe and drawn through bythe cable 30 until its forward end reachesthe end 33, as

shown'.

My invention is particularly adapted to a lining of curved pipe, as has beenheretofore stated. By reference to Fig. 2,it will b e seen that the members 25 forma flexible man- 'y drel, the nose of each member fitting within the concave rear end 29 of the advance member, and as a section of lining 1s pulled within .the pipe around a bend the members turn upon each other, accommodating them- 'selves yto the bend rand effectually preventing any buckling or kinking of the lining. By virtue of their peculiar shape they 'do not clog the lining or increase its diameter by any slight amount, but act freely within it,

Ivforming a flexible mandrel of constant diameter.

N The peculiar shape of the holes 27 give still further freedom to the members 25 1n their movements, the centralportions 27 being inl effect the pivot point of the.

membersr 25, the members turning freely about the Acable 10. During the operation lfof drawing in it is convenient to station an *'fA-"opera'tor at 'each end of the pipe, one apply- 6.0;:

. manipulatingithe rear end of the apparatus ing stresstoA41 the cable 3() and the other ughthe handle 23', which he grips. The

- @aj-rend ofk the tube .can be worked to and froas -the lravming in operation takes place, antistress of hefcable 1Q can be readilyade' tion of a flexible rod 34 for the cable 10 of lthe just described apparatus in the substitu- Fig. l. This rod, of course, will be of varying lengths, depending upon the length of the pipe to be lined. It is provided on one end with an eye 35 anda washer 36, and

on the other vend with a. confining nut 37' provided with an eye for the attachment of the cable.

In Figs. 6 to 9 is shown an apparatus more particularly adapted for use in con nection with straight pipe, although it may be readily used with curved pipe where the bends are not too sharp. It consis of a cable 38 attached at one end to a member 39 straddling the rear end of the pipeand at the other end attached to `the front end of the pipe. This attachment at the front end mayfbe by simply tying in the groove 41 formed in theend of the tube or by tying to a bail 42 suitably secured to that end of the tube. In the bight of the cable 43 is placed a pulley block 44to which stress may be applied by any suitable means, such asa tackle 45 for drawing the' attachment with- :ihn the pipe. Thisisshown very clearly in It will thus be' seen that I have produced an apparatus very practical and eiiicient.

In actual use it has served its purpose with' out trouble and has roven very durable, I have found that it 1s applicable alike for straight and curved pipes of both small and large sizes.

The pipe as lined by simply expanding the metal tube which has been drawn into it is very'serviceable when used on pressures higher than atmospheric.' pressure, but it sometimes happens that this pipe is used in connection withasuction devices and vacuum apparatus. In such cases it sometimes happens that the lining is drawn away from the walls of the pipe so far sometimes as to Ipartially or wholly close the pipe. I have vfound 4that a cement may be used in connection with the lining which cementsthe lining to the walls of the pipe and prevents it from being apply to the linin before it is drawn into the pipe, as hereto ore described, expanding the lining and pressing -it into intimate contact with the walls of the tube after the lining has been drawn in. `It requires but a short time for the cement which I use to set, and it thereafter holds the in place. f

In assembling-the linings within the pipes I have found that great friction exists between the lining and the pipe, lparticularly drawn away.V This cement I,

lining firmly easy passage of the lining intdthe pipe, I

lubricate its exterior surfaces with a suitable lubricant, I have found tallow very good for this purpose.

`When I use the cement I prefer to make it of such composition that it serves both as a lubricant for the lining, while it is being drawn into the pipe, and as a cement after the lining has been drawn in andexpanded.

While I have described the bestl form of my invention now known to me, it is obvi- -ous that many changes may be made in the details. thereof, without departing from the scope of the claims.

What I claim is: A 1. An? apparatus for'drawi'ng a section of lining material Within a conduit to be lined comprising a flexible member adapted to extend through the section,.means at one end of theflexible member for `connecting the member to the section at that end and transmitting stress applied to the flexible member to the section at said end, and means at the other end of' the flexible member for engaging said section at its opposite zend,

filling members carried by the flexible mem ber, said filling members having expanding louter surfaces 'adapted to contactwvith the inner walls ofthe section.

3. An apparatus for drawing a section of lining material within a conduit l.to be lined comprising a flexible member `adapted to pass through the section* and to be rigidly attached to it at one end, a series of filling members carried "by thel flexible member within the section,and means forconnecting. the flexible member with the other end of the section. f

4. An apparatus for drawing a section of lining materialwithin a conduit to be lined comprising a flexible member adapted to pass through the section and tobe rigidly attached to it at one'end, a series of filling members carried by the flexible member within the section, and'adjustable means for lconnecting the flexiblemember with the other endof the section whereby the tension of the flexible member between the ends of the section may be adjusted. l

5. Anv apparatus for drawing a section of lining material within a conduit to be lined;

comprising a flexible member, means for attaching the said member to one end of the section of lining material comprising two coperating clamping members secured to the flexible member and of an external diameter substantially equal tothe diameter of the section adapted to receive the end of .the section, and Imeans .for clamping the members together and upon the end of the section.

6. In an apparatus for drawing a section of lining material into a conduit to be lined, means for attaching the member through which stress may be applied to the end of the section comprising two clamping members with cooperating conical clamping plates of an external diameter substantially equal to the diameter of the section and adapted to receive the end of the section, means for clampingl'them together about the section, and a flexible member secured to said fastening' means and adapted to extend lengthwise of the section.

7. An apparatus of the character described comprising a flexible mandrel composed of a flexible member,`a series of filling membersclosely fitting` on the flexible member and bearing directly against each other, each of said filling members having a central openingl flaring at its opposite .ends and merging at one end into .a conmember, each ofcaved face in the fillin the filling members urther having a rounded nosea't its opposite end snugly and movably Ufitting in the concaved face of' the adjoining filling member and bei-ng'provided with an expanding outer surface for direct contact with the inner walls of the section. .y

8. In an apparatus of the character described, a series of filling members provided with openings, a flexible member threaded through the openings for support# ing the filling members, the openings flaring toward the opposite ends of the filling members to providean intermediate hinge portion to snugly engage the vflexible "member whereby the filling members are free lto swing about the hinge portion and accommodateI themselves to a section, and means for holding said filling members upon the flexible. member.

.9. 'A filling member for flexible mandrels comprising a body having a rounded nose' at one end and flaring from the'nose to its lopposite end, the opposite end of the body being concaved and rounded to snugly and slidably receive the nose of an adjoining filling member, the body having an axial opening flaring at the ends of the body, and i providing an intermediate contracted portion for snugly receiving a flexible support and toadmit of the swinging of the body thereabout. j.

' 10. An apparatusfor drawing a section of lining material into a conduit to be lined comprising a flexible member adapted to lbe transmittingstress to thev opposite end of the section of lining material and comprisber adapted to fit the f. ing a screw-threaded rod to which ble member is. connected,

adapted to bear,

ing a screw-threaded rod to which the flexible member is connected, a yoke through which the `rod passes, and a cone shaped member adapted to fit the other end ofthe section and on which the end of the yoke isadaptedl to bear.

' 12. An apparatus of the character described, comprising a flexible-member, means at one end of said flexible member for attaching it to a, section of lining material, means at the other end of said member for transmitting stress to the opposite end of the section of lining material and compristhe flexia yoke through a-cone shaped memother end .of the sec.- tion and on which the end of, the yoke is andmeans for adjusting the rod with respect to the yoke. y

13. Anapparatus i of the character described, comprising a flexible mandrel `adapted to be threaded lengthwise through a section of lining material, and means vat one end thereof for attaching thereto the which the rod passes,

section of lining material through which the said mandrel'isthreaded, said means means for rigid .bers being adapted to be threaded through a section of lining material, and means at one end of said flexible cable for attaching the same to the section of lining material through which it is threaded,-said means comprising two coperating clamping plates,

and means for clamping them together.

l5. A filling member .comprising a body having a central bore `fiaring toward `the endsJ of the body, and providing an intermediate contracted portion adapted to snugly receive a fiexible member and about which the filling member is adapted to` swing.

16. The method of'threading a section of lining material through a pipe which consists in threading a fieXible mandrel through 'the section, attaching the mandrel to the section at the advanced end and thereafter kpulling the section into the pipe' advanced end free.

17. The method of threading a section of lining into a pi e which consists in placing a flexible mandiel within the section and thereafter drawing the section into the pipe by applying stress simultaneously to each end of the section of lining material and to the mandrel.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JAMES oqPERsoNs.

Witnesses:

J. G. DARBOX, CHARLES LOWELL HOWARD.' 

